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GeoGebra Klaslokaal

Signed Subtraction

Auteur:Kevin Hopkins

Onderwerp:Aftrekking

Subtracting with negatives is not difficult once you learn to do it and once you see why it works the way it does. See a video at http://www.artofproblemsolving.com/Videos/external.php?video_id=22 for an explanation.

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